diff --git a/src/main/java/com/twentythree/peech/script/controller/ThemeController.java b/src/main/java/com/twentythree/peech/script/controller/ThemeController.java
index aac3d37..05534d1 100644
--- a/src/main/java/com/twentythree/peech/script/controller/ThemeController.java
+++ b/src/main/java/com/twentythree/peech/script/controller/ThemeController.java
@@ -41,7 +41,7 @@ public ThemesResponseDTO getThemes() {
     }
 
     @GetMapping("api/v2/theme")
-    public ThemeIdResponseDTO getTheme(@AuthenticationPrincipal JWTAuthentication jwtAuthentication) {
-        return themeService.getThemeByUserId(jwtAuthentication.getUserId());
+    public ThemeIdResponseDTO getThemeId(@AuthenticationPrincipal JWTAuthentication jwtAuthentication) {
+        return themeService.getThemeIdByUserId(jwtAuthentication.getUserId());
     }
 }
diff --git a/src/main/java/com/twentythree/peech/script/repository/ThemeRepository.java b/src/main/java/com/twentythree/peech/script/repository/ThemeRepository.java
index 937e638..9318923 100644
--- a/src/main/java/com/twentythree/peech/script/repository/ThemeRepository.java
+++ b/src/main/java/com/twentythree/peech/script/repository/ThemeRepository.java
@@ -16,6 +16,9 @@ public interface ThemeRepository extends JpaRepository<ThemeEntity, Long> {
     @Query("select v from VersionEntity v where v.themeEntity.themeId = :themeId")
     Optional<List<VersionEntity>> findAllVersionsByThemeId(Long themeId);
 
-    @Query("select t.themeId from ThemeEntity t where t.userEntity.id = :userId")
+    @Query("select t.themeId from ThemeEntity t where t.userEntity.id = :userId and t.themeTitle = 'default'")
     Long findThemeIdByUserId(Long userId);
+
+    @Query("select t from ThemeEntity t where t.userEntity.id = :userId and t.themeTitle = 'default'")
+    Optional<ThemeEntity> findDefaultThemeByUserId(Long userId);
 }
diff --git a/src/main/java/com/twentythree/peech/script/service/ScriptService.java b/src/main/java/com/twentythree/peech/script/service/ScriptService.java
index cd5d7c1..e013cb3 100644
--- a/src/main/java/com/twentythree/peech/script/service/ScriptService.java
+++ b/src/main/java/com/twentythree/peech/script/service/ScriptService.java
@@ -60,7 +60,7 @@ public SaveScriptDTO saveInputScript(Long themeId, String[] paragraphs) {
 
         LocalTime expectedTime = calculateExpectedTime(script);
 
-        ThemeEntity ThemeEntity = themeRepository.findById(themeId).orElseThrow(() -> new IllegalArgumentException("패키지 아이디가 잘못되었습니다."));
+        ThemeEntity ThemeEntity = themeRepository.findDefaultThemeByUserId(themeId).orElseThrow(() -> new IllegalArgumentException("패키지 아이디가 잘못되었습니다."));
 
         Long latestMajorVersion = scriptRepository.findByMaxMajorVersionInthemeId(themeId);
 
@@ -78,7 +78,7 @@ public Mono<SaveSTTScriptVO> saveSTTScriptVO(Long themeId, Long scriptId, ClovaR
 
         ScriptEntity scriptEntity = scriptRepository.findById(scriptId).orElseThrow(() -> new IllegalArgumentException("scriptId가 잘못 되었습니다."));
 
-        ThemeEntity ThemeEntity = themeRepository.findById(themeId).orElseThrow(() -> new IllegalArgumentException("패키지 아이디가 잘못되었습니다."));
+        ThemeEntity ThemeEntity = themeRepository.findDefaultThemeByUserId(themeId).orElseThrow(() -> new IllegalArgumentException("패키지 아이디가 잘못되었습니다."));
 
         // 해당 스크립트의 MajorVersion과 MinorVersion을 가져옴
         Long majorVersion = scriptEntity.getVersion().getMajorVersion();
diff --git a/src/main/java/com/twentythree/peech/script/service/ThemeService.java b/src/main/java/com/twentythree/peech/script/service/ThemeService.java
index 2ce347b..96f5fad 100644
--- a/src/main/java/com/twentythree/peech/script/service/ThemeService.java
+++ b/src/main/java/com/twentythree/peech/script/service/ThemeService.java
@@ -56,7 +56,7 @@ public ThemesResponseDTO getThemesByUserId(Long userId) {
     }
 
 
-    public ThemeIdResponseDTO getThemeByUserId(Long userId) {
+    public ThemeIdResponseDTO getThemeIdByUserId(Long userId) {
 
         if(themeRepository.findThemeIdByUserId(userId) == null) {
             throw new IllegalArgumentException("생성된 기본폴더가 존재하지 않습니다.");